5ÔÂ9ÈÕÏûÏ¢£¬ÔÆÄϺìºÓ½¨Ë®ºìƤÑó´Ð½Ó½üβÉù£¬ÕûÌå»õÔ´ÖÊÁ¿ÓвîÒ죬Êг¡°´ÐèÄûõ¡£ºì´ÐÒ»°ã»õ¼Û¸ñ²Î¿¼0.15-0.25Ôª/½ï£¬ÒÔÖÊÂÛ¼Û£¬Êг¡ÎÞÌ«´ó²¨¶¯¡£